// 布局相关的样式
#app > .van-config-provider {
    height: 100%;
    display: flex;
    flex-direction: column;
  
    > .sdy-header {
      height: 46px;
      overflow: hidden;
    }
  
    > .sdy-footer {
      height: 50px;
    }
  
    > .sdy-container {
      flex: 1 1;
      overflow-y: auto;
    }
}